Sound-reproducing machine.



No.734,206. PATENTED JULY2l,19 O3.

' J. WELLNER.

SOUND REPRODUGING MACHINE.

APPLICATION nun NOV. 29, 1902.

H0 MODEL.

(7:25am 7%Z Jaer war UNITED STATES PATENT i atnted jury e1, 1905.

OFFIGE.

SOUND-REPRODUCING MACHINE.

srnofrroerroiv forming part of Letters Patenthfo. 734.,206, dated Jiily21, 1903.

Application filed November 29,1902. Serial No. 133,216 (lil'o model.)

of devices for supporting and guiding the sound-box, in mechanism forraising and lowering the stylus-needle to and from the record atextremity of its forward and backward movements, and in means forcontrolling the motion of the sound-box, all of which will behereinafter fully described.

Referring to the accompanying page of drawings, Figure 1 illustrates aside elevation of a sound-reproducing machine with the stylus inposition to be fed forward by the groove of the record. Fig. 2represents a detached front elevation of the sound-box and itssupporting-tube with the sound-box feed forward to the full extent ofits movement and the stylus lifted from the record, and Fig. 3 shows aperspective View of the sound-box detached from its supporting-tube.

Referring to the reference-letters of the drawings, A represents therecord; B, the sound-box; O, the carrying-tube, and D the horn. Therecord A is supported on a turntable A, which is fastened to a shaft Asuitably journaled in the frame A of the machine. The shaft A may bedriven by a suitable prime mover-such, for instance, as an electricmotor-or by the well-known springdriven clockwork mechanism.

The sound-box B is provided in the usual way with a diaphragm B, astylus-lever B and a stylus B and in addition to these has a long tube Bprojecting out from the center, which is guided in the carrying-tube orjournal 0. The tube B of'the sound-box has pressed into its sheet twoparallel grooves b and b, which are brought together by a channel at apoint b The sound-box being free to turn in the journal 0 is providedwith a weighted lever B by which the stylus is caused to turn and engagethe groove of the record when it is moving forward.

nal for the tube B of the sound-box, is fastened to an arm 0, which issecured to the frame A of the machine by screws 0 c.

The horn D, which for the convenience of space is located directly abovethe turn-table, is rigidly connected to the carrying-tube O by an elbowd.

Supported upon the tube 0, which is of thin brass, is a solenoid E, theterminalseand eof which are connected to a source of electrical energyF. On the upper side of the tube C, at the end nearest the sound-box, isa roller G, journaled in a leaf-spring G which is fastened t0 the tubeby screws g g. The roller G passes through an opening G in the tubeO'and by virtue of the spring G is caused to engage either the grooveher I) of the tube-B When the sound-box is in the position shown in Fig.1, the roller G will rest in the groove b, which is of sufficient widthto allow the sound-box to turn and engage the groove of the .recordunder the influence of the weighted lever B When the sound-box has beenfed forward to the full extent of its movement by the groove of therecord, the stylus-lever B is brought in contact with'a pin b fastenedto theturn-table A and passing through a hole aim the record A. As theturn-table revolves the pin b engages the stylus-lever B and causes itto turn, as shown in Fig. 2, thus forcing the roller G out of thegroove 1) into the groove 1), and at the same time electrical contact ismade by'the styluslever engaging a contact 2 causing the solenoid-E,which acting upon the iron tube B of the sound-box to draw it into theposition shown in Fig. 1, at which point the roller G approaches thepassage b and by the turning of the sound-box under the influence of theweighted lever'B finally enters the groove b.

as a bearing to guide the tube of the soundbox as the stylus traversesthe helical groove of the record.

2. A sound-reproducing machine in combination with the turn-table, asound-box provided with a diaphragm and stylus, and with acentrally-projecting tube, a fixed tubular bearing surrounding the tubeof the soundbox and forming an axis for the sound-box and its tube inwhich it may rotate as well as a bearing to guide the sound-box and itstube as the stylus traverses a helical record-groove, and a weightedlever projecting out from the rim of the sound-box to cause the same toturn and retain the stylus in communication with the record-groove,substantially as described.

3. A sound-reproducing machine comprising in combination, a turn-tableadapted to receive a record, a sound-box adapted to slide and free toturn, a fixed hollow bearing supporting the sound-box, and a pin mountedupon the turn-table and adapted to turn the sound-box, substantially asspecified.

4. A sound-reproducing machine, comprising in combination, a turn-table,adapted to receive a record, a sound-box adapted to slide and free toturn, a fixed hollow journal carrying the sou nd-box, a pin mounted uponthe turn-table and adapted to turn the sound-box, and means forreturning the sound-box after it has been fed forward over theturn-table, substantially as described.

5. A sound-reproducing machine, com prising a turn-table, suitablysupported and rotated, provided with a record-disk, a soundbox adaptedto slide and free to turn, a weighted lever to turn the sound-box andcause it to engage the record, a pin mounted upon the turn-table andadapted to turn the sound-box at the end of its forward move ment, afixed hollow bearing carrying the sound-box, means to carry thesound-box to move forward and backward in said bearing, and a hornconnected to and extending out from said hollow bearing, substantiallyas specified.

6. A sound-reproducing machine, comprising a turn-table having a record,a soundbox having a projecting tube provided with grooves, a fixedhollow bearing carrying said tube, a spring-pressed roller adapted tosaid grooves, means for turning the sound-box at the end of its forwardtravel so as to cause the roller to move out of one end and into theother of the grooves and thereby raise the stylus from the record, meansto return the stylus to its initial position, substantially asdescribed.

7. A sound-reproducing machine, comprising in combination, a turn-table,a soundbox mounted in a journal and adapted to slide and free to turn,means for feeding the sound box forward, and turning it at the end ofits forward movement and a solenoid for returning the sound-box to itsinitial position, substantially as specified.

8. A sound-reproducing machine, comprising in combination a rotarysound-box carrying a stylus, a turn-table, a record-disk upon itsturn-table provided with a helical recordgroove, a projecting pin at theinner extremity of said groove and operated to turn the sound-box bodilyand thereby disengage the stylus from the record.

In testimony whereof I afiix my signature in presence of two witnesses.

JULIUS WE LLNER.

Witnesses:

DAVID S. WILLIAMS, ARNOLD KATZ.

